Hernial truss.



No. 698,264. Patented Api'. 22', |902.

' G. .W. DERR.

. HERNIAL TRUSS.

\Applica.tion led Apr. 16, 1901.)

(Ann Model.)

UNITED STATES PATENT EEICE.

GEORGE W. DERR, OF PHILADELPHIA, PENNSYLVANI.- i

HERNIAL. TFUSS'.

sPEcrrIcA'rroN frming part er ieaers Patent No. 698,2254, dated prn e2,190e.

A Application filed April 1e, 1901.-

" a link therewith, a light and flexible construction capable ofadjustability of action being provided thereby.

The characteristics of my invention will more fully appear from thefollowing description, taken in connection with the accompanyingdrawings, of which- Figure l is a perspective view of a truss made inaccordance with my improvements. Fig. 2 is a side elevation, and Fig. 3is an end elevation,in illustration of my improvements.

As shown inthe drawings, the band A,preferably made of aluminium, isformed to fit and clasp the body, a concavty A being provided to bridgethe spinal column,- the flexibility and lightness of the materialpermitting conformation to the body and freedom from undue pressure.

The pad B is secured to the lever-arm B L, as by means of the screws h,the lever-arm being oblique to and pivoted` upon an arbor 0 preferablyintegral with or made from the body of the band iA. The lever has ashort Serial No. 56,152. (No modeh) arm B2, which is pivoted to a linklC, having a pivotal connection on the free end d. of a spring D. Thespring D is secured by the ad- 4'justable screw d to the band A, theadjustment of the screw regulating the force exerted by the spring andthe consequent pressure of the pad B. The arbor ct is preferably 1ocatedat a point near the lower part of the truss-band in order to admit ofthe operating mechanism, comprising the arm B2, the link C, and thespring D,`acting within the approximate width of the band, to form acompact structure. The pad B,"iixe`d on the oblique arm B', extendsforwardly and when pressed inwardly by the actuating mechanism eects aperfect support.

Having described my invention, I claim.-

In a truss, the combination of a spring-band having a pivot or arborthereon, with a lever having an arm oblique to said-arbor, said leverbeing pivoted on said arbor, a forwardlyextending pad fixed on saidoblique arm, a

link pivotally connected to said lever, and a spring having one endfixed to said bandand the other -end pivotally connected to said link,substantially as specified.

Inwitness whereof I have hereunto set my hand, this 15th day of April,1901, in the presence of the subscribing witnesses.

GEORGE w.-VDEEE.

Witnesses: y

THOMAS S. GATES, PERoIvAL H. GRANGER. j

